Wu H.-P.,Buddhist Tzuchi General Hospital |
Wu H.-P.,Tzuchi University |
Chou Y.-F.,Buddhist Tzuchi General Hospital Taipei Branch |
Yu S.-H.,Tainan University of Technology |
And 4 more authors.
Otology and Neurotology
Objective: The purpose of this study was to determine, through a randomized, double-blind, placebo-controlled trial, whether intratympanic steroid injections (ITSIs) could improve hearing recovery in patients with sudden sensorineural hearing loss (SSHL) who did not respond to initial systemic steroid therapy. Study Design: This was a prospective, randomized, double-blind, placebo-controlled study. Setting: The study was conducted in 2 tertiary referral centers. Patients: A total of 60 patients with idiopathic SSHL who did not respond to an initial round of systemic steroid therapy were included in this study. The subjects were randomized into an ITSI group and an intratympanic normal saline injection (ITNI) group, which were matched by age and sex. A total of 55 subjects completed the study. Intervention:: Participants received either ITSIs or ITNIs. Both groups received 4 injections within a 2-week period. Main Outcome Measures: Pure-tone thresholds were compared between the 2 groups 1 month after injection therapy. Results: In the ITNI group, the pure-tone threshold was 69.9 ± 18.5 dB before intratympanic injection therapy. After therapy, the hearing threshold improved by an average of 4.5 ± 6.5 dB, and 10.7% of subjects improved by 10 dB or more. In the ITSI group, the pure-tone threshold was 64.6 ± 17.7 dB before intratympanic injection therapy. After the therapy, the hearing threshold improved by an average of 9.8 ± 8.5 dB, and 44.4% of subjects improved by 10 dB or more. Both the response rate and the level of hearing improvement were significantly greater in the ITSI group than in the ITNI group. Conclusion: These results demonstrate that ITSIs are beneficial as a salvage therapy for the treatment of patients with idiopathic SSHL who fail to respond to initial systemic steroid therapy. Copyright © 2011 Otology & Neurotology, Inc. Source
Huang S.-F.,Taipei Veterans General Hospital |
Su W.-J.,Taipei Veterans General Hospital |
Su W.-J.,National Yang Ming University |
Dou H.-Y.,National Health Research Institute |
And 8 more authors.
Infection, Genetics and Evolution
Genotypes of Mycobacterium tuberculosis (MTB) are related to the geographic origin of the patients and population migration. The relationship between genotypes of MTB and clinical presentations has mainly focused on transmission of multi-drug resistant MTB strain in population. This study aimed to investigate the molecular epidemiology and dynamic change of MTB genotypes in Taiwan, and their association with clinical presentation among patients with pulmonary tuberculosis. A multi-center, two-year study which enrolled 516 patients with 516 MTB isolates was conducted, including: (1) 254 isolates from northern Taiwan; (2) 38 isolates from mid-western Taiwan; (3) 211 isolates from southern Taiwan; and (4) 13 isolates from the east coast of Taiwan. The isolates were genotyped with spoligotyping and standardized 12-loci-MIRU-VNTR method. The results showed Beijing/Beijing-like family was the major genotype of MTB in the northern (58%), eastern (53%), and southern (33%) regions. The second most widely spread lineage were the EAI-Manila (20% in the west and south) and Haarlem family (13-27% in the south, west, and east). According to the cluster analysis of 12-MIRU-VNTR genotypes, there were differences in distribution of MTB genotype between the northern and southern regions, and a temporal relationship between isolation year and 12-MIRU-VNTR genotype especially in loci 26 and 39 might exist. Furthermore, some patients with cavity lesions on chest films were associated with a cluster of Beijing family MTB strains, which can be defined by cluster analysis of 12-MIRU-VNTR genotype. However, the results of 12-loci-MIRU-VNTR genotyping in a longitudinal study should be interpreted with caution due to its short term instability. Further investigations of different molecular methodologies are necessary. © 2011 Elsevier B.V. Source
Wu Y.-C.,Chang Gung University |
Chang I.-C.,National Health Research Institute |
Wang C.-L.,Chang Gung University |
Chen T.-D.,Chang Gung Memorial Hospital at Linko |
And 10 more authors.
Background:Recently Echinoderm microtubule-associated protein-like 4- anaplastic lymphoma kinase (EML4-ALK) fusion gene has become an important biomarker for ALK tyrosine kinase inhibitor (crizotinib) treatment in NSCLC. However, the best detection method and the significance of EML4-ALK variant types remain uncertain.Methods:Reverse transcriptase-polymerase chain reaction (RT-PCR), fluorescence in Situ hybridization (FISH) and Immunohistochemical (IHC) stain were performed on tumor tissues of 312 NSCLC patients for detection of ALK rearrangements. Mutation analyses for EGFR and KRAS genes were also performed.Results:Thirteen of the 312 patients (4.17%) had ALK rearrangements detected by RT-PCR. If RT-PCR data was used as the gold standard, FISH tests had a low sensitivity (58.33%), but very good specificity (99.32%). IHC stain had better sensitivity (91.67%) than FISH, but lower specificity (79.52%), when the cut off was IHC2+. All of the 8 patients with high abundance of EML4-ALK positive cells in tumor tissues (assessed by the signal intensities of the RT-PCR product), were also have high expression of ALK protein (IHC3+), and positive for FISH, except one failed in FISH. Variants 3a+3b (4/5, 80%) of EML4-ALK fusion gene were more common to have high abundance of EML4-ALK positive cells in tumor tissues than variant 1 (1/3, 33.3%). Meta-analysis of the published data of 2273 NSCLC patients revealed that variant 3 (23/44, 52.3%) was the most common type in Chinese population, while variant 1 (28/37, 75.7%) was most common in Caucasian.Conclusions:Among the three detection methods, RT-PCR could detect not only the presence of EML4-ALK fusion gene and their variant types, but also the abundance of EML4-ALK positive cells in NSCLC tumor tissues. The latter two factors might affect the treatment response to anti-ALK inhibitor. Including RT-PCR as a diagnostic test for ALK inhibitor treatment in the prospective clinical trials is recommended. © 2013 Wu et al. Source
Yu C.-T.,National Cheng Kung University |
Yu C.-T.,Buddhist Tzu Chi Medical Center |
Chao S.-C.,National Cheng Kung University |
Lee H.-C.,National Cheng Kung University |
And 7 more authors.
AIDS and Behavior
A cross-sectional study was conducted to investigate the prevalence, types, and risk factors associated with anal HPV infection among HIV-infected men in outpatient clinics at an AIDS designated hospital in Taiwan. Anal swabs were collect and PCR (polymerase chain reaction) was used to analyze the types of anal HPV infection. HPV DNA was detected in 74.2% of the 198 participants, including high-risk types (40.4%), low-risk types (18.2%) and multiple-types (6%). The most common types were HPV 16 (13.1%), 6 (10.4%), 11 (7.1%) and 18 (6.1%). The significant risk factor for being infected with any type or a high-risk type of HPV was having sexual partners (>3) in the preceding 6 months. Low-risk type of anal HPV infection was associated with a history of anal lesions. Our findings support the need for regular follow-up of all HIV/HPV coinfected patients and their partners to allow early detection of anal intraepithelial neoplasia. © 2011 Springer Science+Business Media, LLC. Source
Su C.-C.,Tzu Chi University |
Tsai J.-P.,Buddhist Dalin Tzu Chi General Hospital |
Tsai J.-P.,Chung Shan Medical University |
Lin M.-N.,Buddhist Dalin Tzu Chi General Hospital |
And 4 more authors.
Journal of Clinical Virology
Background: Human herpesvirus type 8 (HHV-8) is the aetiologic agent of Kaposi's sarcoma (KS). The incidence of KS in renal transplant patients is much higher than in healthy controls. The risk is even higher among recipients seropositive for HHV-8 before transplantation. Patients with end-stage renal disease (ESRD) are immunocompromised and are candidates for renal transplantation, but HHV-8 seroprevalence in ESRD patients has not been well documented. Objectives: This study aimed to evaluate HHV-8 seroprevalence in ESRD patients in a cohort in Taiwan. Study design: Blood samples collected from 149 ESRD patients and 149 age- and sex-matched healthy controls were analysed for HHV-8 antibody with immunofluorescence assay (IFA) and enzyme-linked immunosorbent assay (ELISA) and for HHV-8 DNA with polymerase chain reaction. Results: Seropositivity and titres for HHV-8 antibodies with IFA as well as seropositivity with ELISA were significantly greater in ESRD patients than in healthy controls ( P= 0.006, 0.001 and 0.003, respectively). Patients with a history of taking herbal medicine had significantly greater ELISA positivity than those without such a history ( P= 0.004). ELISA positives, particularly patients, had much higher IFA antibody titres than ELISA negatives ( P<. 0.0001). Seropositivity in ESRD patients was not related to lymphopaenia, monocytosis, dialysis duration or a history of transfusion. Two diabetic ESRD patients were positive for HHV-8 DNA. Conclusions: ESRD patients had significantly greater HHV-8 seropositivity than healthy controls in Taiwan. This association seems to be related to the geographic location of the cohort and invites further studies for the early association of HHV-8 infection in ESRD patients and risk for KS. © 2013 Elsevier B.V. Source